Did my first MFM when I was 20 with a friend and a girl we met at a party. I invited her upstairs and she said yes, as long as my friend came too, so we found an empty bed and he did her first. I was fascinated by my friend's cock sliding in and out of her, but didn't touch him or interact in any way with him, wasn't ready for that at that age. It was the first time I'd knowingly fucked a girl filled with someone else's cum - no condoms, she took the pill. I found that a real turn-on. Had a few more 3somes before I got married, then didn't do any more for many years. Now with wife number 2 , and we swing, so have had more in the last few years although we mainly 4some. My wife says she loves the attention she gets from MFM, particularly when the second man goes in immediately after the first has cum and withdrawn. Women are lucky!