Behind closed doors

this morning while laying in bed, lena and i got on the conversation of foreplay... (TMI a bit?? o well, its my blog... suckit...)

anyhow... we got on the subject of boobies and lena was wondering what size of boobies does it take in order to "riverboat" them...

.....

riverboat?

this is what popped in my head:

.... and i pictured someone slapping his girlfriends boobies up and down rapidly....

.....

its.... motorboat....