What do i have?

This guy fucks me about once a month, even though he knows I'm there to be used weekly. He always tells me to take his sick load. I suck his cock covered in warts, till he gets hard. He fucks me violently, but his cock needs his hand clamping on it till he barely cums, but cums alot shallow in me as i beg him to fill me with disease. His battery acid burns in me until i've absorbed him, & my ass gets very sore & irritated while others finish using me... My cock has a rash all around where I cum on myself while being slammed, & the sticky cum i now blow is like acid. What may i have?