It all started with a kiss.Next thing you knew, you were ten months in and two centimeters dilated.Consider planting your next one on Smoochie Baby, a new boutique in the heart of baby-booming Williamsburg.The cheerful shop is stocked with the best in modern kids’ fashion, accessories, and furniture. Find funky cashmere separates by Trash-a-Porter, alongside gear du jour like the Orbit Baby, next to a red miniguitar by Schoenhut (complete with a downsized amp). There are even movies to keep kids occupied while parents shop.Really sealing the deal — with a kiss, of course.Smoochie Baby, 110 Berry Street, between North 7th and 8th Streets, Williamsburg (718-384-3340 or smoochiebabynyc.com). ESCAPEWater Taxi Beach Governors IslandWhat: Frolic on 20,000 square feet of sand (no swimming, unfortunately) at this waterfront gem. Why: Life’s a beach.When: Fri., 10 a.m.-5 p.m.; Sat. & Sun., 10 a.m.-7 p.m.Where: Accessible by the free Governors Island Ferry, Battery Maritime Building, 10 South St. Schedule online at govisland.com.HEARPutumayo Kids: Picnic Playground Tour with Jay Mankita What: Kids will groove to this mix of songs about food from all over the world.Why: It’s a global gumbo.When: Sat. (Carroll Park), 4 p.m.; Sun. (Central Park), 1 p.m.Where: Carroll Park, at Carroll & Smith Sts., Carroll Gardens; Central Park, Peter J. Sharp Children’s Glade, 106th St. & Central Park W., west of Great Hill Oval.PAINTPieces for Peace MuralWhat: Your child can add strokes to CityArts’s massive project by kids from around the globe.Why: Color your world.When: Sat., 3 & 4 p.m.Where: Children’s Museum of Manhattan, 212 W. 83rd St., b/t Amsterdam Ave. & Broadway (212-721-1223). Sign up at the visitors information desk.