The CW's reality show rose from 650k (0.2) last week to 989k (0.4) last night (Tuesday), according to the latest preliminary Nielsen overnight data.
The Catalina, which has been compared unfavourably to Jersey Shore by critics, has been threatened with the axe due to its poor start.
Elsewhere, the fourth game from the NBA Finals scored 13.9m (6.0) for ABC between 9pm and 11pm, prior to which Jimmy Kimmel Live entertained 6.9m (2.5).
Despite the fact figures are likely to change substantially in the official ratings, it is certain that the Alphabet Network topped the primetime league table.
Over on Fox, Hell's Kitchen was steady with 5.3m (2.2) at 8pm, then MasterChef fell to 5.1m (2.0).
Love in the Wild, NBC's only original broadcast, slipped to a low of 4.1m (1.3) in the 10pm hour.