Is age just a number??

Hey ladies,,, I’ll get straight to the point.. My ex husband and I recently got divorced, and I’m in a new, so much happier marriage. My new hubby has two kids, a girl of 16 and a son of 23,,, maybe some of you can see where I’m going,,,, my husband isn’t always around, and my stepson is very attractive... so really what I’m asking is is it wrong for me to be sexually attracted to them?? I haven’t felt this way since college and I really wanna get “back into my game” ;). I’m not concerned about his relation to my husband, just about whether or not our age difference is an issue,, I’m a 56 year old woman and my husband and stepdaughter don’t know. Only honest and helpful replies please, Thanks queens!!