PVT PLT OF AN SMA SEL ACFT INADVERTENTLY FLIES INTO TCA AIRSPACE.

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NIGHT PLEASURE FLT FOR 2 PAX WITH NO FLT EXPERIENCE. UNFORECAST TURB FRIGHTENED BOTH PAX. 30 KT WINDS GAVE A WIND CORRECTION ANGLE OF CLOSE TO 30-45 DEGS. I DECIDED TO RPT THE TURB VIA A PIREP WHEN FRONT SEAT PAX BECAME FRIGHTENED (BUMPS) AND PULLED ON THE YOKE. WE CLBED FROM 1500 FT TO 1800 FT. I HAD THE FSS STAND BY WHILE ASKING PAX IF HE WOULD LIKE TO FLY; IF SO NOT TO PULL ON THE YOKE. THE PAX WAS UNACCUSTOMED TO FLT AND HIS CTL INPUTS AND THE TURB MAKE CTL DIFFICULT. AFTER FINISHING THE PIREP; I HAD TO TELL THE PAX TO LET GO -- THAT I WOULD FLY. AT THIS POINT I NOTICED THAT I WAS 030/6 FROM HOBBY ARPT (IN THE CLASS B AIRSPACE). FACTORS CONTRIBUTING: 1) UNFORECAST TURB/STRONG WINDS. 2) FRIGHTENED PAX. 3) PAX INSISTING ON FLYING. 4) CLOSED RWY AT LA PORTE (DEST). THIS FACTOR AFFECTED PLT'S PERFORMANCE BY CAUSING WORRY ABOUT THE LNDG. WITH THE CLOSED RWY THE XWIND WAS CLOSE TO 90 DEGS AT ABOUT 30 KTS AT 3000 FT. THIS ALSO CONTRIBUTED TO THE FACTORS AFFECTING PERFORMANCE OF PLT. A TURN TO 030 DEGS TOOK US OUT OF THE CLASS B AIRSPACE WITHIN A MIN. WE CROSSED THROUGH THE NE CORNER OF HOBBY CLASS B AIRSPACE AT 1500 FT. NO OTHER ACFT WERE IN THE AREA. VISIBILITY WAS EXCELLENT AND NOT A FACTOR. I CAN ANALYZE MY MISTAKES: 1) DECISION TO TAKE UNINITIATED PAX FLYING WITH FORECAST WINDS OF 30 KTS. 2) ALLOWING PAX TO FLY DURING A TIME WHEN NAV WAS IMPORTANT. 3) FAILURE TO NAV (BECAME OVERLOADED; TCASII SATURATED; CONSTANTLY ANSWERING QUESTIONS ABOUT TURB; ETC TO PAX ADDS CONSIDERABLY TO TASKS).