Need advice with mom.

hey everyone, so I (30M) need some advice with what to do, my mom(56f) has always been the type that doesnt mind showing some cleavage or just walk around the house in panties and a t shirt. well in the past year or so she's been "accidentally" brush her ass against me or "accidentally" book a cruise and not have them separate out beds. and when she goes to bed on the ship she'll not even wear a top and cuddles up next to me.... ive always found her to be hot but never really though she'd be into doing anything. what should I do? our next cruise is in September, thats if she's doesnt book another one before then. I feel like I wouldn't be able to just openly ask her what her intentions are . any advice would be nice