I know its not very common, but my gf was able to get pretty intense ones through me squeezing her breasts. I guess you could say she likes it rough lol, because all i do is just squeeze and kinda pull down on the breasts and she pulls me in closer because its so intense.
Her breathing changes and when we're not making out while doing it, she puts her head back with her eyes closed because it feels so good. The look on her face is unbeatable and it feels so good knowing I could make her feel great.
Its a shame because she feels very upset that she hasnt been able to make me come through handjobs but shes gonna try a blowjob when shes ready and maybe that will work. I keep explaining to her that whats more important to me is making her feel good and just knowing that shes willing to do that for me too means the world to me. Love is stronger than any form of sex for sure- just remember that.