After popping the question toBritney SpearsSunday,Sam Asgharihas assured fans — and some fellow celebrities — that he and his new fiancée will be signing an “ironclad” prenuptial agreement.

In anInstagramstory posted Monday, the actor, 27, said that he and Spears, 39, would be protecting their personal assets before tying the knot.

“Thank you to everyone who is concerned about the prenup. Of course, we’re getting an ironclad prenup to protect my Jeep and shoe collection in case she dumps me one day,” he joked along with two crying-laughing emojis.

While Asghari didn’t mention any concerned fans specifically, Oscar-winning actressOctavia Spencerurged Spears to get a prenup on Instagram, where she commented on the singer’s post announcing her exciting engagement news.

Britney Spears and Sam Asghari.Sam Asghari Instagram

Britney Spears

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Spears — who has been in an ongoing legal battle with her father Jamie Spears over her conservatorship — revealed the engagement on Sunday, sharing the news with a joyfulInstagram post. The “Gimme More” singer posted video of herself flashing her new diamond ring as she stood beside Asghari, writing in the caption, “I can’t f—ing believe it 💍💍💍💍💍💍❣️!!!!!!”

Britney Spears and boyfriend Sam Asghari.Vivien Killilea/Getty

britney spears and sam asghari

Spears and Asghari have been dating for more than four years. The couple first met on the set of Spears' “Slumber Party” music video in 2016. In an earlier Instagram Story posted Monday following the news, Asghari wrote, “My phone exploded today! Thank you for the overwhelming love and congratulations! We both love every single one of you.”

Sam Asghari.Sam Asghari/Instagram

Sam Asghari

Asghari and Spears' engagement comes not long after a sourcetold PEOPLEin June that the pair was ready for a future together.

“He’s ready for marriage and kids with Britney and is serious about the relationship. She wants to take that next step and have that full life with him,” the source said. “As a couple they’ve hidden how they’ve really felt even from people close to them because they were anxious and scared, but now it’s all out there.”

Spears previously thanked Asghari for helping her get through the"hardest years of my life,“in an August Instagram post. Now, the pop star is thrilled that she’s headed down the aisle with Asghari.

“Britney is ecstatic,” a sourcetold PEOPLESunday.

source: people.com