According to E! Online, Jessica threw Ashlee a poolside bridal shower in her LA pad over the weekend.
And despite the day being all about her baby sis, Jessica nearly took centre stage thanks to her very leggy display...
Jessica put her impressive figure on display in a stylish black swimsuit as she joined her sister and their girl pals for a night of celebrating.
Posing alongside her friend, Jessica was keen to show off her recent efforts in the gym as she donned her best cossie and floral crown - which seemed to be a bachelorette essential for Ashlee and her hens. Captioning her photo, Jessica said:
"Oh yea girl...We are proud to be in our bathing suits!! @baylormcg #hardworkpaysoff #workoutpartnersforlife."
Motivated by her own nuptials, Jessica set out on a strict fitness regime to make sure she was looking her best for her big day and like she said her hard work has certainly paid off - just look at those pins!
Last month Jessica married husband Eric Johnson in a ceremony in California and if this weekend's events are anything to go by then sister Ashlee and her fiancé are soon to follow suit.
Joining Jessica and the rest of her bridal party, Ashlee (fifth one in from the left) lined up for a group shot to mark her bachelorette and upcoming trip down the aisle.
Posting the picture of everyone together on her Instagram, Jessica said: "All the beauties celebrating @ashleesimpsonofficial / @missbananahammock!!! I love you Ash :)."
Back in March, Ashlee and Hunger Games star Evan threw a party to celebrate their engagement and now that the singer can tick bridal shower off the to-do list, surely all that's left is to actually say 'I Do'?!
Could it be wedding bells are just around the corner?
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