Do you think it's weird that my husband masturbates in front of me and i enjoy it?

My husband and i have been together for 2 years i'm 46 and he's 25 yes it's a really big age difference but we both love each other i would like to say that we have a have a healthy sex life but we don't have sex as much as i want to we both work i'm a nurse and hes a bodybuilder and a personal trainer usually when i come home i will be tired and not in the mood for sex he would strip from his clothes in front of me and start masturbating i front of me i would just watch him i admit i kinda enjoy it so i just get turned on by it hes really sweet when it comes to my needs though he respects it he always put my needs first do you think that's weird?