(If this is in the wrong forum, Mods please move) Hello all. Ive been a reader of this forum for a couple of months now and I've enjoyed the subject matter. I recently joined to post this thread seeking input on my situation because the topics discussed here are pertinent to my circumstances. Basically, my wife and I have an opportunity to be involved in a MFM threesome and I want some input. Heres the situation: Weve been together since high school, took each others virginity and have been each others first in just about every way. Were still very strong together now in just about every way. We get along, were very sexually active and adventurous, and we dont have any major dysfunctions. Were into a little bit of light bondage and some dom/sub stuff (but not in the stereotypical whips and leather kind of way. Its pretty subtle with us). In terms of the vanilla stuff, were basically up for anything sex-wise. The two of us have considered threesomes in the past, with both female and male partners. I find the idea of either to be pretty arousing, but Im pretty open sexually (although not bi or gay). Im also not the jealous type, which helps. Weve never done it because weve never known anyone we trust enough to invite to join us (or the people we know just arent very good candidates, for whatever reason). Now we have a real opportunity. I have a very close male friend (who used to be a coworker) who has a lot of sexual experience (including the stuff we like as well as with threesomes). Hes very clean, professional and an all-around good candidate. Since high school, Ive only had one or two friends that Ive been able to graphically speak to about sex. Hes one of them. In fact, Ive known for a long time that hes attracted to my wife. Weve even shared pictures. I have showed him nudes of my wife, he showed me nudes of his then-wife (they divorced for reasons that did not involve sex. Incidentally, they were happily involved in the swinging lifestyle until financial matters caused them to part). OK, so I know the next question youre going to ask. What does my wife think of all this? Well, shes into it. Its not an issue of me needing to convince her at all. As I said, were both pretty open to new things sexually. This is something weve included in our fantasy play for a long time. Ive tied her up and blindfolded her many nights (which is what she likes) and described to her in detail what myself and another man would do to her and what she would do to us. We even specifically talk about my friend being the other guy, even taking it as far as her calling out his name when the two of us are fooling around. The fantasy stuff always gets her excited and she has great orgasms. Its a lot of fun for both of us, and she said she would do it for real because we both get off on it so much. She said she thinks we both would enjoy it. Weve discussed it with each other at length, going over the different details in our minds. We have a pretty good idea what we would like to do on the day. Weve also discussed at length all the possible ramifications. Ive assured her that me wanting to share her isnt a sign of disrespect (if anything Im proud of how hot she is and I know shell rock this guys world), and shes assured me that she doesnt need another guy. Weve also discussed the various hypothetical negative ramifications (jealousy, safe sex, pregnancy etc.). We usually arrive at the conclusion that were secure and responsible enough to handle ourselves. Between the two of us, weve basically eliminated any major concerns that we have and feel fairly confident to say that we are capable of at least trying it once to see if we like it. Weve agreed that if either doesnt like it, we wont pursue further it until all concerns are addressed. So I guess I dont really too many have lingering doubts, but there is one thing that lingers for me. (Here comes the LPSG connection). Admittedly, that one lingering thing is the difference in size between me and the prospective other guy. Here comes a disclaimer: I am not looking for SPH and this isnt a veiled attempt to solicit it. The reason I make this disclaimer is because, from what Ive read here, SPH is a bit of a touchy subject and Im in no way looking to get involved in any kind of debate. Im about 5 inches in length and just a little under 6 inches around (small side of average lengthwise, decent girth). I generally dont have a problem with my size at all. It is what it is. There are lots bigger and lots smaller. Over the years, Ive had no problem giving my wife lots of orgasms with my penis, fingers, sex toys and whatever else we can come up with. Still, the prospective other guy is quite a bit bigger. Hes sent us pics (Ive showed them to my wife) and hes about 7-8 inches in length and thicker than me (not sure on an actual number, but its apparent). You can also tell he has some nice ridges and a great mushroom head. I have no doubt that this experience will be very different altogether for my wife, should we go through with it. Not only will she be with a new partner, but one who is quite a bit more hung than the one shes used to. Moreover, Im pretty sure my pal is a good lover because Im friends with other girls hes bedded (and we all know that some girls talk, sometimes even to their guy friends, about sex). On top of that, I will be there adding more stimulation. So I know there is a good chance this is going to overwhelm her senses more than when its just the two of us, so Im prepared for a stronger reaction. In fact, it all seems pretty hot to me and I really get off on the idea of my lady having a good time with all this. But when it comes to cock, I am my wifes only frame of reference. If we do this, he will be only the second man shes ever had and, realistically, he will be the largest shes ever had. So I guess my question is this: Despite her assurances otherwise, what are the chances that this will be some sort of eye-opener when it comes to size for her? I guess I just worry that after this, it will take more to stimulate her when its just the two of us. I really do trust her when she says it likely wont be an issue. I genuinely just worry that she herself might not be able to say that with certainty, simply because shes doesnt have that previous frame of reference. The worst-case-scenario for me is that she becomes a size queen and decides she needs a bigger permanent partner. Honestly, I dont think that would happen under any scenario. I think even if that was the case, she would stay with me because of the life weve built together and because we have much more going for us than our sex lives. But there is the realistic concern that this may increase her tolerance so to speak. So, my question to the people on this forum about big dicks is this: What can I realistically expect after my wife gets a hold of something larger than my five-incher? Am I really going to need to ramp it up in the bedroom to compete after this? Sorry about such a long post. Any feedback would be appreciated. Should I let my wife experience a bigger cock?