since joining this site I have begun to do so
I hope you're enjoying it.
For me, there is a convenience about letting it fly onto your chest/belly. I like to masturbate in bed and, lying on my back, that's where my cock naturally points so, when it's time to cum, no having to grab something and make sure I am aimed correctly - I can just cum.
Then I also don't see cum as anything nasty. When I am still horny and stroking away it seems like something sexy to be experienced rather than just dumped as conveniently as possible. Just as I enjoy feeling it push its way up my urethra from my prostate to the tip of my penis, so I also enjoy feeling the warm splashes as it lands on my skin, and it's great to check out whatever pattern in made on me at the end.
After that, usually, excitement turns to ambivalence and I do, usually, wipe it up fairly soon but sometimes I will run my fingers through it or even eat some.