The Catholic Church used to sell indulgences to the faithful.

She ate the cake indulgently.

The indulgers gathered at the buffet table, eager to try all the delicious food.

She is an indulger in all things luxurious.

He granted himself the indulgency of sleeping in on weekends.

She enjoyed the indulgencies of a luxurious spa day.

The luxurious spa treatment was truly indulgeable.

She is known for her self-indulgent behavior.

Her self-indulgence led to financial troubles.

She is over-indulging in desserts.