Peter Parker becomes black cat

Hi im Peter Parker oh i was into one day where everything change for me and my crush mary jane but im getting a head of myself lets start back at the beginning where my college was on a trip to s lab doing experiments on spiders and messing around with their DNA me and my childhood crush mj got partnered up as we get lost from the rest of the group we find ourselves in a odd looking room with vents all over as gass starts to fill the room as the chemicals get into our bloodstream changing bot our dnd