Help me find a joke

I am arguing with a friend that a joke was(my side)/wasn't(his side) on this subreddit some time ago.

It was about how a women got his sister to bait his future husband into having sex and when he got out to the car to get his condoms he was greeted by the family and told about the test. At the end the moral was something like always keep the condoms in the glove compartment.

My searching attempts where futile. Can someone help me dig the link out?