I have a guilt wich i shared with my step mom and.....

I am 29 year old minakshi. it is at the time when I was 18 and my dad had sex with me.
It happened so my mom passed away when I was 18 then dad and me were alone. I used to cook and take care of dad. once my leg was facture and and it was plastered I was unable to do my routine things also like taking bath, changing cloths, going to bathroom etc. so during those problem my dad unwantedly had to touch my body at various places which due to sever pain. Once in the bathroom my father was applying soap on me taking all care but i slipped from soapy floor and while controling accidently my father's fingers entered into my vagina and we felt guilty, we neglected that but when he continued with applying soap I saw my dad's tool was erected and due to his tender touch I became horny subsequently he too. My hand reached to his tool and he started kissing me. soon we were on the floor and we had sex. This was repeated at home 7-8 times. Finally he took a decision and got married, my 2nd mom is 7 years older to me. after one year of his marriage he died of heart attack I felt very lonly and no one to support my step mom also. we both managed the house. When i saw my step mom crying I used to feel very bad. for surprise I saw once my mom mustrubating in the bed. The same thing I saw 2nd time when she was sleeping with me in the same bed at mid night. I gone crazy looking at her and I stopped her but she was too hot that moment and she huged me and started crying. That moment I felt like I must confess my guilt what I did with my father meanc her husband. so I narated whole story to her. The result of that was she kissed me and we had good bed time to get rid of our lonelyness. Now we do that very offen.. but now she is looking for a good boy for me to get marry.. I have a feeling about ber that after my marriage with whom will she share her feelings as we have no relations .. will this be ok ever.. Is that worth feeling guilty..?