I once had sex in the same room with my friend, but we both had different girls and the lights were off. The other girl wanted to change when she heard that I was more well endowed. My friend was insulted so we kind of made our excuses and left. Completely random women, barely even said hello, just back to their place and sex. I was a bit promiscuous when I was young, but clearly never 2 girls at the same time.