Sexy Fun Times/Show them a book

When you get back to your apartment you make a show of looking through your videos and tell them you can't find the one you wanted. "I've got a book though," you say and take it off the shelf.

"We've seen pictures," Laura says, looking annoyed. "I thought you were going to show us a video."

The girls are sat side-by-side on the sofa with their knees together and you muscle in between them with the book on your lap. "You may not have seen pictures like these before," you say, opening the book.

The first pictures show two women in various states of undress, kissing and cuddling. "Eww, we're not lesbians," Amy says.

"No, you're just shoplifters," you say with a smile. The next page reveals that one of the women has got a cock instead of a pussy; "not quite what you thought," you say.

The girls look at the picture wide-eyed. "Is that real," Laura asks.

"Oh yes," you say; "you might be surprised how many women there are with a surprise package between their legs