Can You Guess?

This morning while out adding some veggies to the compost pile I found this vine....I have no idea what it is. It started in one compost bin and has moved on under the slats and into the other bin.Then tonight I was walking the yard with Mark trying to decide what we plan to do in the yard tomorrow (hopefully Bryce will be here to help) and I walked around the back of compost bin #2 and found this vine. Mark things they might be cukes. I think they might be pumpkin vines.

What's your guess?