You rubbed her gentials with yours?
i was laying down on my back while she was "grinding" the base of my penis
Only real risk would be STD's that are transmitted form skin to skin contact...herpes, HPV and syphilis.
Herpes testing-3 months, Syphilis-6 weeks, No HPV test in men
Is there a high risk of these?
am very worried
Can't really say, depends on if she had anything time frame. Too many variables to give an estimation.