Yes, this is very interesting. If I go to sleep and wake up in a wet diaper then the urge to take them off is not there anymore or at least not as strong. So, it is directly related to the aforementioned act. I think of it as being like wanting to jump out of bed after having sex. Most of us don't do this because we have an emotional attachment with our partners. But of course we don't have the same attachment to the diapers - well, we have an attachment of sorts but it's not the same! So, I attribute some of this phenomena to a fear of being caught. If I am somewhere totally safe like a hotel room then I am much less likely to take them off. But I also feel it is a testament to how otherwise normal we are - it's like, okay, I'm done with this - there's things to do and I need to get on with life. I used to really not want this to happen (taking them off after said act) and would be mad at myself the next day if I did. Sometimes I would resort to extreme measures like getting extra drunk so I would just crash for the rest of the night in a diaper. However, more often than not this would backfire. Either I would be so drunk I could not even get the diaper on (woke up many times naked with a diaper in my hand), or, I would crash as soon as I had it on. Don't recommend this approach and now I don't drink anymore because of this kind of abuse! However, as others have mentioned, the effect is not as strong as it once was - probably because of better self-acceptance. Also, my wife knows I love to wear a diaper as part of foreplay but we have really struggled with this in our marriage. Sometimes she will let me wear a diaper as part of foreplay and other times she may just say things to me that excite me. For example, she might say that after we are done having sex she is going to put me back in diapers for the rest of the night. I really like this. However, after we're done she asks me if she should put me in diapers now and I just say no, it's okay. This she finds frustrating because she doesn't do things for me very often and so, when she does and I reject her... well, you know.