I have been seeing my boyfriend for four weeks. He has told me all about his past relationships. Is it safe to stop using condoms now?

I am just curious about sex, and why is it such a turn on?? Is it the physical contact or sexual actions?? Or is it endorphins spreading through the body while it is happening??

What does one do when they are desensitized to their vibrator and need to check a consumer report before investing in a new one?