Pippa and son make a splash

PIPPA Middleton has opened up about her son Arthur for the first time.

The Duchess of Cambridge’s sister has kept tight-lipped on life with her six-month-old until now.

Writing in her Waitrose magazine column, the 35-year-old told how her son loves to swim.

She added: “This exercise helps guarantee sound daytime sleeps and the movement has improved his digestion.”