This effective technique is commonly referred to as "two in the pink, tongue in the stink". While inserting two fingers into a woman's vagina, the partner penetrates the woman's anus with his tongue. The partner's other hand manually massages the woman's clitoris and the combination brings her to a life-changing orgasm.
I did a San Diego Pipe Cleaner on Emmylou last night and she almost blacked-out!
