Is it normal my boyfriend is always flustered around my gay brother
My boyfriend of 1 year and I share an apartment while we go to highschool, and my brother who is 3 years older comes over and spends the night sometimes or just hangs out for a bit as we are really close.
When he comes over my boyfriend always acts really strange, he blushes bright red and flexes his muscles or just generally says flirty things to him.
My bf is really into lifting weights and working out so my brother asked him to help him learn, so we all went to the gym. My bf was teaching my brother how to do squats with weights and my brother pressed right up against him while doing them and my bf got a rock solid hard on from it.
He swears he is completely straight and obviously really loves women, he tries really hard around my brother because he's nervous about being accepted by my family and he just wants to make a good impression. He never had a dad or any siblings so he just isn't sure how to create a bond. He always says the fact my brother is gay makes him kind of uneasy as to how to act around him.
Is this normal?