We progressed through our education until we were 18. After one swim when we entered the drying room with towels wrapped around our waists we sat opposite each other, he with his back to the door. As he raised his knees he began to display his genitals and I couldn't take my eyes away. Whether he noticed this or whether he did this on purpose for me to look I have no idea. It excited me and I started to get an erection. His cock was around 3 inches but his balls were large. We chatted for a while then left the drying room, nothing further having taken place.
Being an all-male environment , and we were now of age, sex became more significant in our lives and most were learning to masturbate. I managed to obtain keys to the blanket cupboard and on Sunday afternoon my swimming pal and I sneaked off in the cupboard where there were deep shelves with various blankets on. My pal slid onto one shelf with his girly mag and i heard the sound of him unzipping his trousers. I sneaked a glance over and saw him sliding his clothing down and again his genitals came into view. Erect his cock was no bigger. I watched him begin to wank and also play with his balls as he glanced at the naked women in his magazine, oblivious to me watching his every move. I took out my six inch cock and wanked using him and his activity as my stimulation. I guess we both came in about 5 minutes. With little communication we left the room which I locked.
Life went on as normal. Another week or so passed and like many youngsters we had both taken up smoking, sneaking into the school grounds at various times for a crafty puff. By now I had become curious about what sexual contact would be like and thought about this more and more when we were in our swimming routine or out smoking. One night i woke around 2 in the morning and being wide awake I got out of bed. Without much thought I crept over to his bed in the dormitory and lightly shook his shoulder. He awoke and looked at me. I whispered 'do you want to have a smoke in the drying room?' which he nodded yes to.
We entered the drying room which was extremely warm He sat against one wall and I opened the window a little to let the smoke drift out before lying on the floor in the centre of the room. We both lit up, saying nothing. After a minute or two I thought I would test the waters an slowly stretched my left arm out in his direction. He did or said nothing. My hand made contact with his left knee and still no reaction. As I slid my hand up his thigh he slowly moved his right hand to his pyjama bottoms and undid the drawstring. No words were spoken but I could feel the sexual tension and I took his action to be an invitation.