Not from her butt touching his stomach. As long as he did not secrete any semen inside of her vagina she should be OK as long as the condom was used correctly. He doesn't have to ejaculate inside of her for her to become infected. His preejaculate would contain the infection as well. Like I said as long as the condom didn't bust or tear and it was used correctly she should be fine. But wait six weeks and get tested just in case.
My friend said he did not ejaculate AT ALL in her OR the condom. She also said there was skin to skin contact because her butt hit his stomach so is there still a chance?
If the condom was used correctly the chances are she should be fine. Tell her to wait 6 weeks and go get tested just to be safe. And also not to have sex with this person again until he goes and gets tested and treated if needed. Clamydia is a symptomatic. Which means you won't have any symptoms and you can have it. And not realize it until its to late and you have PID. Which causes infertility. Best of luck to your friend.
if there was any skin contact at all during intercourse like when the two bodies came together yes it is possible... even when you use a condom sometimes your skin in vaginal area will touch and thats all it take