Later, the cute couple were seen laughing together as the former Saturday Night Live star took a plunge in the pool.
Jason and Keeley were first romantically linked together back in February, The couple went on to confirm their relationship with a PDA-packed outing around New York City in June.
The romance marks the first for Jason after his split with ex-girlfriend Olivia Wilde, 37, in November of 2020.
The couple have since been spotted on outings together, with Olivia attending the former One Direction member’s recent concerts