bloke gets asked by a good looking girl with no arms or legs if he would f"ck her. he says ok, picks her up, puts her in the back seat of his car and drives off. after a while, he pulls up next to a quiet, romantic beach. he lifts her out, carries her down to the beach. looking up at him longingly, she closes her eyes and prepares to be kissed. instead, he gently lays her on the sand. bracing herself for the deed, she lays there. after a few seconds of nothing happening, she opens her eyes to see him walking off.
"what are you doing?" she asks.
he replies "the tides coming in and you are, as you asked, well and truly f"cked".