A little amount of blood

Samantha 🐘 • 23. Engaged to the LOML. My snapchat & instagram is SamanthaJo570 musical.ly is @samanthajoann
So sometimes after my boyfriend fingers me, I go to the bathroom and I have noticed that I have bled a real little amount. Not sure why. I don't know if it is because he cut me cause he does have some finger nails. Has anyone else ever had this happen?? Why does it happen?? Could it just be a cut??