Is it normal that i want to have sex with my father in law?

Ok, my father in law and I have a good relationship since I’ve lived next door the past 3 years. Since moving here he’s always liked to touch me. Not nastily, just helping down the stairs, swiping my butt as I pass, patting my butt here n there. And I’ve never thought anything of it. But lately I have been out of this world horny. I mean like play with myself once, twice, three times and cum and still fantasize about sex! Well, mainly what comes before sex and during, but you get it lol and I’ve been working out a lot wearing tight leggings n spaghetti straps and about a week ago.. he comes in my house to help hang something I needed done.. after finishing I give him a hug and he squeezes my butt.. I just squeezed him harder during the hug and he went UNDER my leggings!!! My pussy got so wet from a little foreplay that he just smiled and was very happy at what he found.. I let him play a minute cuz it felt so good and I was a little buzzed.. but then I came to my senses and told him to quit fir now.. that he would get us in trouble. Well last night, I had him come up before hubby come home from work to help put together my new cabinet and after getting done.. same thing! But he went fir my boobs.. I didn’t say anything and let him rub and relaxed my head on his warm chest and as I felt his hand slip down my pants I open up my legs just enough and give him a little preview of what’s to come.. but then I get this overwhelmed feeling like I should stop.. then I tell myself no go ahead.. you deserve to feel another mans strong touch.. and I tell him to stop. But ALL NIGHT I can’t stop thinking about fucking him! I want him to bend me over so bad! I fantasize about him sucking my pussy as he told me he would if I let him.. and I want it SO BAD!!! Now I kno I’m married! But my husband is so mean! He doesn’t hit me or anything but he’s not a bit nice! He complains about everything and his dad is my rock! He helps me with everything and then some! Cuz my husband acts like a child still. Yes he works constantly but I wanna have fun too! I would totally keep it a secret of course and I know he would too! But is it normal for me to want to screw his brains out,?? Cuz I REALLY DO!!!