My question is related to zina

I had bad thoughts about my aunt for a long time so I decided to do something with her.she has been married for 10 years and has 2 childrens. Next time I meet her I talked with her give me a handjob and a blowjob.she was very hesitant but she gave me a blowjob and handjob and we both were naked.now I feel guilty and I have said sorry to her.So would this be considered as zina ?