The France international has had an impressive start to the campaign and was given the nod at Craven Cottage by Unai Emery after three goals in all competitions so far this term.
Aubameyang, who has formed a close relationship both on and off the pitch with Lacazette, started alongside the striker against Watford last weekend but had to settle for a place on the bench versus Fulham.
However, Lacazette ensured Aubameyang was involved in the celebrations by running half the length of the pitch to enjoy his well-taken goal with his pal.
He shrugged off several team-mates before leaping into the arms of Aubameyang as he emerged from the dugout.
The Gunners looked to be heading into the break with a one-goal advantage but Andre Schurrle found an equaliser with a dinked finish over Bernd Leno in the dying moments of the first half.
Lacazette soon doubled his personal tally, though, with an instinctive shot from the edge of the box to beat Marcus Bettinelli at his near post.
Emerys side wrapped up the win as Aaron Ramseys finished off a flowing team move before Aubameyang got on the scoresheet with a neat strike in the 79th minute.
Heres how supporters reacted to Lacazettes celebration with Aubameyang…
Lacazette running to the bench to celebrate his goal with Auba >>
— ?????. (@fiercelessly) October 7, 2018
Lacazette running the length of the pitch to celebrate with Auba #FULARS
— Bons (@bonser_samuel) October 7, 2018
Lacazette running to the bench to celebrate with Auba is just the cutest. Love these dons.
— Craig (@Cxaigo) October 7, 2018
Lacazette running to the sides to celebrate with a cuddle with Auba #FULARS
— Merenna Wilson (@merennaw) October 7, 2018
Love that Lacazette went straight to Aubameyang to celebrate his goal #FULARS
— Bakaine (@MukuruAndrew) October 7, 2018
Did Lacazette just run to Auba to celebrate? How can you not love these guys #Arsenal
— Mahesh (@Mahesh93) October 7, 2018
Lacazette scored and went straight to Auba on the bench to celebrate I love them both so much
— Peyman (@peymansalehi) October 7, 2018
Lacazette and Auba friendship is great
Went to meet him on bench to celebrate
— Tabularasa (@Opizo_) October 7, 2018