trying something new tonight

i met my fiancé at a gallery show years ago and weve been together since then. art is all im ever thinking about most days even when were not making it or hanging out. i dont know what came over me last night but he asked if i wanted to try anything different tonight. hes usually up for everything but i wasnt sure, felt weird somehow. so now here im typing and trying to figure it out, maybe ask for help. weve done a lot of stuff together before but its not like ive had a lot of other people, just him really. what if i turn away or cant get into something hes excited about? the idea of someone else touches on a kind of fear i havent dealt with yet. also been feeling out of it lately, wondering if that changes anything too. so we talked for hours and decided to try a webcam setup but its still making me nervous, typing this now as im trying to work up to it. he wants me to look at another person while hes watching us both on the laptop and its just... i dont know how this will go, if its even what im comfortable with. maybe were both going to be disappointed? not sure why but feels like a big deal. should we try this or is this too weird? im scared