SEX!!!

So. I had sex for the first time with my new bf. He's one of those guys that you see and be like "damn this guy must be amazing in bed." (He's very attractive) but it was a total disaster. I was so wet so horney and bam! After 10 to 15 SECONDS he was done! He told me that it was beacause he hast had sex in like a year. Is that possible or you guys think he was just lying and that's all he can do ? And I feel like crap 😒😞😕😕