Lesson for you my dear... The reason cats have barbs on their penises is female cats can get pregnant by multipul partners. So in a batch of kittens they all, technically, could be from different fathers. So the barbs are used so that the male taking said female cat, scrapes away all the other males sperm. Which doesn't work all the time obveously, but that is why they have barbs. They are made of flesh so even though they would feel way different from a regular penis they would still possibly be pleasurable.

The more you know, because knowledge is power.
or
The less you know, because ignorance is bliss.

You decide

Possibly pleasurable if you like the inside of your vagina/anus scraped up. I'm saying it doesn't seem like it would be a pleasurable thing to happen.