I am a hetero man, but have had several encounters for mutual enemas. I enjoyed the giving and receiving, but never felt any "chemistry" or attraction.
My first session was more that 35 years ago, and it was a two hour drive from my home. When I went into his house he showed my an album of men giving and getting enemas. He asked me if I was ready, and I agreed. We went into his bedroom, and he had a shower curtain covering his bed, and a hook in the ceiling with a chain hanging from it. He asked me to undress, and he did likewise. He then showed me a tray with a collection of nozzles on it, and told me to select the ones I wanted to try. He had me lay on my stomach, and he lubed my rectum deeply. He inserted a nozzle and I took the whole bag, because I did a prep enema at home before I left. After expelling it, he hung the bag from the chain and he assumed the knee to chest position. he told me to lube his rectum, and said
" you can go in deep because I already took an enema before you got here."
After several bags each, he inserted his finger again and massaged my prostate. I then massaged his prostate, and we masturbated each other to climax.
I have had several more sessions with other men, and would still be open to trying this again.