Sluddling

Sluddling is also known as slutty cuddling. It's when a couple same or different sex gather closely together on a bed, couch, chair etc. and Cuddle plus a little more usually resulting in touching skin to skin. Any kind of Skin to skin and manual sex are common actions during sluddling.

How was your night with your girlfriend last night?
It was decent we sluddled for awhile but we made a bit of a mess when the sluddling got too heated.