u/Imaginary-Tart-6882

Ive been talking to someone online, i am 13m(turning 14), they are 16m(already aged). For the past 2 weeks they have making advancements on me. They say stuff such as asking me if i "like dick", or am gay. They even tried to get me do weird and vulgar acts, for example "practicing sucking for them on a bananna". Of course it made me reallllly uncomfortable and I told them that, but they dont stop. I am straight, and have told them that many times, I like talking to them, they are awesome and really good at the game we play. Just sometimes they ruin it for me. I am making this post to ask for advice, i really like them as a friend, but im afraid they view me differently. What should I do?