If you're not comfortable riding your S.O and essentially using his peen as a pogo stick and his body as a trampoline, attempting to reach orgasm on top probably isn't going to work for you. However, if you are a fan of girl-on-top, coming from above him can be a wonderful experience. Supposedly, men love women in this position, based on the pleasure they gain from being underneath, plus having the view of their S.O naked on top of them. You coming while bouncing on top of him is going to make his sexy time experience mega exciting; and you've got the leverage to make your orgasm as hard or gentle as you want.
I love Stephen King and music festivals; I eat my toast upside down; I daydream about getting married probably a bit too much; and I wish every day for a pet sausage dog puppy (who never materialises – sob).