sex with a girl ?

Omg so i always had fanstys of being with a girl since i was a kid , litterly. Today it happened .. When she told me she wanted to fuck my heart felt like it was finna die i was so shocked and everything ... We went into the bathroom we started kissing nd she started fingering me nd sucking on my titties and it didnt feel good i was fake moning the WHOLLEEEEE Time. I wasnt gettn turned on or nothingg .. Like i wanted to stop i was like ew like girl why am im not gettn turned on in my head ...