I was a lookout once myself for my mate when we were teenagers. call me ignorant but all I was told was to say if any one was coming , all I thought was it was mutual sucking and wanking fully clothed , but the first two was like that but the third one wanted more, at first it was simulated he got behind my mate and pulled his trousers and pants down and put his cock simulating a fuck , then suddenly he entered my mate ,vhe gave out à moan , it was erotic and horny never seen it up close before , I think they both came off. After he stopped like the bloke I could see spunk on his cock as he put it in his trousers, my mate came away,. We went to a nearby pub , he was embarrassed and said he didn't want to spoil our relationship, I had no idea as as far as I could tell he was straight. We are still friends but never forgotten that