Emotional during sex

I'm fine when I'm on top
When my boyfriend is on top it's also fine until he really stars grinding  and I don't get any clit stimulation and I only orgasam by clit stimulation but that's besides the point anyway it feels great and my legs start to shake and it starts from my groin area and then I get treary.... I'm not upset or sad or angry 
It just I dunno gets too much? Like in a good way? I can't control it and this is the 2nd time it's happened....
Any clue to why? Or if it's happened to you? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors