We were both semi to hard. After a while I excused myself to go to the bathroom wondering if anything might happen. When I returned nothing seemed...to have. I suggested that they should kiss (we were young). After a while they did, which was a huge turn on. I watched them kiss for quite a while. He couldn’t resist feeling her tits and M started stroking his cock. I watched while he reached down inside her G-string and started playing with her pussy. Since her tits were free, I went. She lay flat on top of me, her breasts and hard cock pressed against me.We made out passionately as she moved her hips against me. Our cocks rubbed against each other as she moved her hips slowly.She pulled away from me and with the strength of a man flipped me over onto my belly. She started to kiss my back, licking and kissing all the way down to the crack of my ass. Her hands spread my butt wide open and I felt her tongue slide into my back passage. She moaned as she sucked and lick my ass,. “Good! Feel his shaft, work your way up to the head and then back down.”I did as I was told. I felt the veins on his cock as I worked my way up to the head. His head was much larger that his shaft and I could feel it throb. He gave out a small moan as I stroked it. “Your good” he said.“Had a lot of practice on myself I guess.” I replied. The ladies laughed when they heard that.“My turn” Cindy let out excitedly. With out warning the guy got up and sat on the corner of the tub. Cindy looked at me. But I wanted him so badly, so I planned few ways to seduce him and try my luck.I started wearing very tiny shorts or I would remain in my briefs itself whenever he was around. I started discussing sex more often with him and even gradually he admitted sometimes he feels very horny and he would jack off in the bathroom after watching porn.In the following days, I started touching him inappropriately. He started noticing it but didn’t object. I purposely left my door open when I was changing.