Yes, there is! About 40 years ago, when I was a lot more flexible and my dick was longer, I wanted to give myself a blowjob. Couldn't quite manage it though, only just about managed to brush the tip of my cock with my lips and tongue, so had to fuck my fist as usual. Nevertheless a lasting memory!
Well that's probably out of the question for most people, you'd have to be huge to reach all that way 😂 But there is something strangely attractive about a self fuck..