Kelly Preston doesn't want to stop breastfeeding her son.

The actress has 16-month-old Benjamin with husband John Travolta, and although the time will soon come to wean him onto a fully solid diet, she will miss the closeness of feeding him herself.

She told ''When I stop, it's going to be really hard on me. I love nursing so much.

''I love the closeness and knowing that I'm giving him the best as far as nutrients and antibodies. And he really loves it, too.''

Kelly, 49, told how Benjamin shares her and John's bed, and that she nurses him in the night and up to five times a day.

She added: ''He'll come up and point and go, 'Mama, more.' It's so cute!''

Ben - who has a sister, Ella, 12 - has been eating some solids, and according to Kelly will eat organic vegetables and even salmon.

His vocabulary is also growing and he is keen on words that begin with a B.

Kelly said: ''New words are coming so fast. He loves 'B' words - basketball, bus, belly button, bird. He talks to birds and looks at them in the sky, and loves airplanes, buses, balls and lizards. His favourite star is ['Sesame Street's] Elmo.''

John and Kelly were left devastated in 2009 when their eldest child, Jett, died aged 16 after hitting his head during a seizure while in the Bahamas. Aviation enthusiast John recently paid tribute to him by donating a G-2 Gulfstream executive jet to the Georgia Aviation Hall of Fame at the Museum of Aviation.