I got married at 18. My wife was 33.
Not here to waste your time, so I will jump straight in.
As you can imagine i was inexperienced - my wife very experienced. She loved role playing and one of her favorite scenes was home invasion. She insisted on it being as real as possible, so most times I was having sex, I was made to force my cock into the wifes ass. At first it wasn't even enjoyable, but after sometime i couldn't cum unless my cock was forced into tight holes.