Kinky and Uncircumcised

My bf is super kinky and is not a virgin. Unfortunately i am an idk about the whole BDSM thing. Ive watched videos about it out of curiosity and i thnk its pretty hardcore. But itll be my first time ever when we do it this weekend. My bf is also uncircumcised so idk if thats good or bad. Im super clueless please help me out! If u girls have suggestions on sexy poses that would be great! Thanks💋