Truth is, I like gripping my dick when it's hard and still in my boxer briefs or pajama pants or whatever because, I don't know, it gives a fuller, warmer sensation than just palm-to-pud contact. And it feels good. Whenever I wake up with morning wood, it's not strange for me to give it a few pulls through the material... and if I'm that wound, I'll just cream, remove the underwear, and take a shower. (I usually do my laundry a couple of days after anyway.)