Our first passionfruit

We've been growing two vines up the side of the chicken run to give them a little shade as well as give us a little fruit.  After a slow start (they got watered as and when whereas the other patches are irrigated, they missed out in this spot), they have taken off with all the rain and we've even got our first little fruit.  I've spotted several more since I took this photo the other day, but I thought it was still worth posting as it seems to be having an identity crisis.  What do you think?

Does it think its a telly tubby?  A snowman perhaps?  Or a butternut?