Str8 beatin' it down, with NO affection involved? About 20-30 mins.
Doin' it 'grown folks style', with affection and all the kissin? About 2 hours....
Back to back to back to back to back, marathon/grown folks style? About 4 hours.
I dont do the 4 hour marathon multiple-room shuffle unless I know I dont have to do anything the next morning.
There's only a certain amount of Kool Juice I can use up before needing a refill......
well then to answer the question as according to the last time i indulged in those sort of activities i would say at or around three hours...give or take