So the previous night I wasn't feeling it at all since we basically do it everyday and she was fine with it. Last night she had to help her little brother out with some homework and before she left I decided to initiate something with her. I made her cum and I came as well and it didn't even take that long bc in my mind I didn't want her brother to think what was taking too long. We do it again after she comes back but by that point I'm way too tired and I go soft midway through. Cut to this morning we do it again and this time I was really trying hard to go for longer but I just physically couldn't. I tried everything under the sun to distract myself from cumming to early and it worked for a while and she was close but I came before her and now she's really upset. Told me it was my last night over but she jokes about it all the times she's said it before but she seemed really upset and serious this time. Whats your opinion and what would you do in my place?