DSF 5! So a few years back, there was a time when I had a d..

DSF 5! So a few years back, there was a time when I had a different work schedule to my bf and we only had an overlap of a few hours. I used to always go into his little computer room and spend some time with him before I went to bed and he went off to work and we'd watch something together or chat or I'd have a beer etc. I used to watch him play a few matches in this tank game he played and I got to know a bunch of the tanks in it, and on this one night he picked a tank called the Maus and started a battle. I thought I'd be cheeky and started rubbing his crotch through his jeans to distract him and he was laughing at it but he was concentrating on the game. I could feel his cock start to swell up under his jeans and I kept rubbing him and messing just to annoy him. It seemed that this was one of the battles that was turning into a stalemate so I asked him how long it would take, and he said the time limit was 15 minutes so I unzipped him and pulled his cock out. He didn't comment, because he was always happy to empty his balls! I started stroking him slowly while asking him random questions about the game and he got very wet very quickly and I was easily able to pull his foreskin all the way back and touch his head (I always called this part the helmet, I dunno if this is just the local Irish word for it). I could tell he was having a hard time concentrating and I decided I was gonna make things more fun. When we'd watch porn together I noticed he liked to watch some light femdom stuff and I would try stuff like this out sometimes, and I found that I liked it too, but nothing too rough. So sometimes I'd tease him then deny him, or make him eat my pussy then tell him that's it once I had cum. So I said ''if you get killed in the game, I'll stop and you'll have to finish yourself off'', I could see him back his tank into a corner in the game into some ruins and there was a lot of loud PING sounds as shots were bouncing off (he said this tank is one of the toughest in the game). I decided to go easy on him because I could see he was getting shot a lot so I pulled his foreskin all the way back and gently rubbed the underside of his exposed head with my thumb, I knew this drove him absolutely mad because he had a tight foreskin and wasn't used to his head being stimulated so directly, and when it was he basically became catatonic (is that the right word?) After about a minute of this was I laughing pretty hard because his eyes were glazed over, his mouth was sort of half open and he was wiggling this tank around like crazy trying to stay alive in the game and his cock was rock hard in my hand. I remember watching the screen and saw him kill a few tanks that made a rush for him and I kinda giggled and said ''wow you really want it huh?'' A few seconds later he popped and it was a HUGE load, there was cum all over my hand, my sleeve, his jeans and t-shirt. He went limp in his chair and looked like he had just run a marathon or something. I did this again a few weeks later, I told him to pick a tank and to pick a tough one and I winked at him. I dunno what he picked but it wasn't the Maus this time and I decided to make good on my threat. By the time he had died in the battle I had him out, and he was rock hard in my hand but hadn't managed to cum yet so I told him too bad, and I got up and left the little office in protest. He was yelling at me to come back and not to leave him with blue balls so I came back with a wet-wipe and gave it to him and told him to jerk off into it. He looked annoyed and amused at the same time and asked to at least be smothered in boobs while he did it but I said no, that he could jerk off with me here or he could do it alone. He shrugged and started jacking off while looking right at me, so I sat in the chair next to him and gently cupped his balls and gave them a little squeeze every now and then. He seemed to really like it, actually, so I let go and gave his balls a very gentle slap and told him to hurry up. He came immediately onto the wet wipe and I started laughing again because I had not seen that coming. ''did I just slap the cum out of you?'' I said. ''I think so'' he said, ''but it was a good one'' That was about 4 or 5 years ago and since then I've gotten much more comfortable being dominant like that a few times a month, I learned that few things make a man cum faster than a little bit of pain and a time limit haha!