So, I was staying at my parents place as my appartment was being renovated - and I hadn't gotten off in about a week. I thought I was home alone - so I went to watch some really hardcore gangbang porn and get a few (I know) loads out of my system. I'm a huge gangbang-fan, so I found some with girls with the body type I like - big round asses and big tits - and went to town sitting ontop of a old towel I found in my parents washer. It didn't take me very long to shoot a huge load, and since it's been a while I was loud as I came a huge load. I didn't stop the movie, and after like 30-40 minutes I was back at it, stroking like crazy - and sure enough, another load. I checked the time, thought..what the hell, the movie is still going! SO I wiped off a bit and went for round three. After some serious jerking - and at this point I was mumbling to myself, stuff like "fuck that nasty whore" and like that - I finally drop load three, still very loud. At this point, the door glides open, I'm sitting there holding my cumglazed dick - as my mother catches her 27 year old son ejaculating to gangbang porn. She looks at me - and goes "Oh so THAT's what you've been doing all day!"
Turns out - she'd been home for at least an hour. I couldn't look at her for the rest of the stay - but saint that she is she didn't bring it up - but there was lube in the guest bedroom the next day!