Watermelon may be ready to pop

Visitors to the garden have been most amused by my one watermelon, but I'll be the one laughing soon as I think it's almost ready for eating. I've just measured it and it's 32.5cm from the stem over the top down to the point where the flower was, the half-circumference-lengthwise if you will (that doesn't sound like a standard measurement but it's the easiest bit to measure!), and I may declare it ready if it doesn't grow by Monday (public holiday, hurrah!). I also think that the tendrils are browning and the underside is more yellow than it was, but this may be my brain playing tricks on me...

A kind reader has suggested that the vine may be in need of some assisted reproductive technology. Once the current buds are flowering I shall manually introduce them to each other and see if they take each other's fancy :)