Am i right in feeling humilated?

my mom's best friend was at our house and i joined them and started to chat and make jokes with them. my mom's friend used to babysit me and i've had a crush on her since i'm 12. she is the same age as my mom (46), but looks like in her 30s (don't get me wrong, my mom looks very good as well, but that doesn't bother me of course)....we all started teasing ech other in a playfull manner as we often do, when i dropped a pencil to the floor. i went down to pick it up and was on all fours under the table. i had my back to my mom, who was sitting there with crossed legs. in continuation to our teasing, my mom wanted to give me a playfull kick. but the top of her boot slammed directly into my . she didn't kick full force, but she got the backside of my testicles perfectly. my nuts felt like they'd been crushed! they started to laugh (sympathaticly though), and my mom daid "honey? no grandkids for me?" and my long time crush was laughing in tears. should i have laughed with them?