I am allergic to sperm. I am not allergic to it if it gets on my skin, my hair, my eye, or even in my mouth, but allergic I am none the less. I did not know about this allergy until recently due to all the years of practicing safe sex practices. wink wink Anyway, I won’t give you all the gross details but it has something to do with chemistry: bases, acids, ph levels and other such nonsense. All I know is that it very annoying and for a girl with my new hobbies damn inconvenient.