This happend a few weeks ago. My gf [F21, about 5’5, bit chubby, short curly blue hair, big anime eyes] and I [M25, 6’2, skinny, bit muscular, average length] are in a medium distance relationship and only see each other on weekends due to work. We are pretty sexually open and have tried different things like bondage, specific places, clothing fetishes etc. I got bit of a sock kink but I’ll try to tone it done.
Anyway, this specific week I was particularly horny doe to no reason at all, but I tried to behave and save it for the weekend. Got a few wet dreams and my gf sent me pictures to masturbate to which hasn’t made this easier. By the time Friday arrived, my balls, a deeper shade of blue.