The former Coronation Street star, 26, is set to marry television personality Mark Wright later this year and it looks like Michelle is making headway with herwedding planning .
Scroll down to watch a video of Mark speaking about his new show
The brunette beauty sent a personalised note to Jessica, which the TOWIE star later shared with her 1.23million followers on Twitter.
Michelle Keegan and Mark Wright
"Just a little note to say Jessica will you be my bridesmaid on my wedding day?" read the message on white polka dot stationery that Jessica posted on Instagram.
"I'd be honoured @michkeegan xxxx @wrighty_," she replied to the question, tagging Michelle and Mark in the picture.
Michelle Keegan's invite on Instagram
Michelle has grown close to Mark's older sister since announcing her engagement in September 2013. The actress' recent departure from Coronation Street has meant that Michelle has been spending more time with Mark and the rest of the Wright family in their native Essex, as she continues to audition for new roles.
In her latest blog post on HELLO! Online, Michelle revealed that she still had a jam packed schedule to keep to.
"Instead of lazy lie-ins with nothing to do, I have been just as busy as ever, and have started auditioning for some acting roles," she wrote. "They have been really interesting parts, so fingers crossed something might come off!"
"I did see a story in one of the papers this week saying that I was going to be going on I'm a Celebrity but that's not the case at all, I'm going to be concentrating on my acting career :-)," she added.
Mark's sister Natalya and Michelle Keegan
Michelle has been warmly welcomed into the Wright family and bonded with Mark's parents and three other siblings. The small-screen star showed she was very much part of the clan when she posted a photo of her and Mark's teenage sister Natalya, a month after her engagement.
"Me and @NatalyaWrightx xx" she captioned the sweet snap of the pair hugging and posing.