Colored Condoms

A young buck went into a large store for a packet of condoms. "Have you tried the rainbow ones?" asked the assistant, "We've got Red ones, Blue ones, Green ones, Orange ones, Yellow ones, plus a few other different colors."

"I'll try the lot" said the young man adventurously.

Six months later, he appeared in the same store with a rather sorry looking young girl asking for maternity dresses. The same assistant served them asking, "What bust, madam?"

"The blue one!" the young man said sadly.