my cousin is havin unprotected sex and wouldnt listen to my advice?

[STEPHANIER]

my cousin is having unprotected sex . i told her she should learn from where im going now . im 15 and going to be 4months at the end of jan and pregnant from twins . she tells me she doubts she's going to get pregnant because when the boys sperms goes in her when she stands up it goes right back down and goes on her panties . i told her that doesnt mean a thing because some sperm is still inside her . she doesnt want to listen when i told her to be protected .