Nick went to a pharmacy and said
"Hello, can you sell me a condom? I'm going to my girlfriend's place for dinner and I think I will be spending the night at her house"
The pharmacist sold him the condom and as Nick was going out, he returns and said "Give me another condom because my girlfriend's sister is very cute too. She always crosses her legs in a provocative manner when she sees me and I think I might strike a bit of luck there too." The pharmacist gave him the second condom and as Nick was leaving again he turns back and said"Give me one more condom because my girlfriend's mom is still pretty cute and when she sees me she always makes eye contact and since she invited me for dinner I think she is expecting me to make a move"
During dinner that day, Nick sat with his girlfriend on the left, the sister on his right and her girlfriend's mom facing him. When the Dad walks in, Nick lowered his head and starts the dinner prayer. "Dear Lord, bless this dinner and thank you for all you've given us".
Ten minutes after, Nick was still praying "Thank you Lord for your kindness. ...."
Another ten minutes goes by, and Nick was still praying, keeping his head down, very close to the table. They all looked at each other surprised, and his girlfriend was even more surprised than others. She gets close to him and whispered, "I didn't know you were so religious"..Nick with his head still on the table replies, "I never knew your dad was the pharmacist!"