So I posted a thread requesting people comment to add time to my dildo gangbang; each comment was to specify ass, pussy, mouth, or tits. Each comment with one of those words added 2 minutes of me fucking a dildo with that part of my body. The thread was open for 24 hours.
I ended up with 14 minutes of ass fucking, 10 minutes each of pussy fucking and blowjob, and 4 minutes of titty fucking.
I "warmed up" earlier in the day by binding myself in a kneeling position...