Help

Im 19 and I’ve been dating my boyfriend (20) for about 3 months, it’s got to that point where he wants to have sex but I’m a virgin and I’m afraid of getting fucked in the ass because of the pain and getting shit on his dick lately I think he’s been getting fed up with me saying I’m afraid and I don’t know what to do I’ve researched anal sex a lot and I’m just afraid of embarrassing myself or him thinking I’m disgusting just don’t know what to do constant feeling of anxiety whenever it’s brought up in conversation