How do I have sex to keep my real ion ship alive?

I live with a guy whom I am attracted to but I’m too scared to give him a sick his dick like I’ve done it before but he did most of the work and I really have an urge to do it again because he expressed to me how much he loved it but I can’t bring myself to do it. Any suggestions for me because I’m literally so shy in this scenario he stopped playing video games to try to entice me to be with him but I dented an still too shy and now he said he’s gonna play video games like all night wtf btw yes he likes me and is nice to me and agreed to be my boyfriend he’s a good person he’s not just using me and yes I have a desire to please him and yes I want to but I want to have to confidence to do it