Keeping things clean.

Sally knew that Tom and Tim had been good friends for a long time.She had been Tims girlfriend when Tom was going out with Wanda, but when Wanda started making a pass at Tim, she did a swap and started dating Tom.
Tim never kept a girlfriend for long and Wanda soon went her own way.

Sally and Tom had been living together for a few months when Tim called around when Tom was away and asked her how she was enjoying life with his best mate Tom.

"Yeah, great" she said "but he has got some funny habits, though."

"Such as?"

"Well, when he's in the shower, he shoves the hand shower up his asshole! Then he sticks the soap up and washes out all the shit!"

"What else do you think a hand is shower for? I mean he has a lovely clean ass, hasn't he?"

"What do you mean, 'a lovely clean ass'?"

"Well, he has, hasn't he. Always did have a super ass."

"Is that what you two get up to when you meet on Sundays? And I thought it was just for a drink. You dirty buggers, you!"

"No, sweetheart, CLEAN BUGGERS!"