My girlfriend was not very experienced when we first had sex. She was with a guy who was 6 foot three with a 5 inch and thin penis (or so she says). I am not large at all but i guess for a guy who is 5' 6", a 6.3 inch dick looks pretty good compared to what she has had in the past. One night I finally got it out of her (asking what the largest dick she had ever seen). When she was in high school she jerked off a black guy who was huge. My guess was that he was +8 and thick. So this started a whole new chapter in our sexual relationship. I started buying her big toys, gradually getting bigger and bigger. I am extremely comfortable with her having new experiences. I don't think it would ruin our relationship because at this point we are just exploring each other sexually. I love to push her limits and I want nothing more that to satisfy her in anyway I can. We have talked about someone joining in but I am not sure how to begin that situation. She has said how badly she wants to try but on the condition that I am in the room either participating or watching (Which I have to admit turns me on) Anyone have any advice or similar experiences they would like to share?